Good find on some racing from Detroit dragways, it shows two 64 Hemi sedan's with dates of March 7 & June 6 printed on the flyers, (time-line) at the bottom of this link.

http://www.waterwinterwonderland.com/drags.asp?id=1335&type=6

Does anyone here got any old National Dragsters or Drag News issues from 1964, those newspapers would have dates, photo's & specific info in them. (lots on ebay I guess)